CN109144578B - Display card resource allocation method and device based on Loongson computer - Google Patents
Display card resource allocation method and device based on Loongson computer Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
- G06F9/4451—User profiles; Roaming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0026—PCI express
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Abstract
The invention discloses a display card resource allocation method and device based on a Loongson computer, and is used for the field of computer resource allocation. The method provided by the invention comprises the following steps: after the Loongson computer is started, acquiring information of all display cards of the Loongson computer through a PCIe bus; creating a priority array for all the display cards in a memory, wherein each item in the array corresponds to the priority of each display card, and one display card with the highest priority is preset in the array; traversing the array, acquiring the display card with the highest priority, and reading the information of the display card with the highest priority; and allocating an address space for the display card with the highest priority. The invention can allocate the address space according to the priority of the display card by setting the priority of the data, thereby reducing the cost increased by modifying hardware, simplifying operation and having good expansibility.
Description
Technical Field
The invention relates to the field of computers, in particular to a display card resource configuration method and device based on a Loongson computer.
Background
The Loongson computer takes a Loongson mainboard as a core, and is matched with a computer of external equipment such as display equipment, storage equipment, network equipment and the like, after the computer is powered on, all the external equipment is generally required to be scanned, and address space is allocated to the external equipment.
At present, aiming at the problem of address conflict of a plurality of display cards of a Loongson computer, a method of adding hardware is often adopted to select an access display card, namely, a corresponding display card is preset, and the method solves the problem of address conflict of the display cards, but because a circuit needs to be additionally added, the equipment cost is increased, and the expansibility is limited.
Disclosure of Invention
The embodiment of the invention provides a display card resource configuration method and device based on a Loongson computer, which are used for solving the problems of the existing display card conflict, inconvenience in address space configuration and high cost.
In a first aspect, a display card resource configuration method based on a Loongson computer is provided, which includes:
after the Loongson computer is started, acquiring information of all display cards of the Loongson computer through a PCIe bus;
creating a priority array for all the display cards in a memory, wherein each item in the array corresponds to the priority of each display card, and one display card with the highest priority is preset in the array;
traversing the array, acquiring the display card with the highest priority, and reading the information of the display card with the highest priority;
and allocating an address space for the display card with the highest priority.
In a second aspect, a display card resource configuration device based on a Loongson computer is provided, including:
an acquisition module: the system comprises a PCIe bus, a main control board and a USB interface, wherein the PCIe bus is used for acquiring information of all display cards of the Loongson computer through the PCIe bus after the Loongson computer is started;
a creation module: the display card priority setting method comprises the steps that a priority array is established for all display cards in a memory, wherein each item in the array corresponds to the priority of each display card, and one display card with the highest priority is preset in the array;
a traversing module: the display card module is used for traversing the array, acquiring the display card with the highest priority and reading the information of the display card with the highest priority;
a distribution module: and the address space is distributed to the display card with the highest priority.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the invention, after the bus is scanned to obtain the information of the display cards, a priority array is created, the priority of each display card is respectively set through data, and then the address space is distributed for the display card with the highest priority. The problem that a plurality of display cards conflict when the address space is limited is solved, so that the address space can be allocated according to the priority of the display card, the cost increased by modifying hardware is reduced, the operation is simplified, and meanwhile, the method has good expansibility.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a method for configuring a display card resource based on a Loongson computer according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display card resource configuration device based on a Loongson computer according to a second embodiment of the present invention;
Detailed Description
The embodiment of the invention provides a display card resource allocation method and device based on a Loongson computer, which are used for allocating memory space when a plurality of display cards exist in the computer.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, an implementation process of a display card resource allocation method based on a Loongson computer according to an embodiment of the present invention includes:
step S101, after the Loongson computer is started, all display card information of the Loongson computer is obtained through a PCIe bus;
the method for starting the Loongson computer is characterized in that the BIOS or the operating system installed on the Loongson computer is started, and a processor and a memory on the Loongson computer can be initialized after the computer is powered on.
Optionally, the starting Loongson computer includes: and initializing the Loongson processor, the memory, the north bridge chip, the PCIe controller and the south bridge chip after the Loongson computer is powered on. The initialization is to set the hardware device to a default initial state.
PCIe is a high-speed serial computer expansion bus standard, and connected devices are allocated with independent channel bandwidth, and only one device can be respectively connected to two ends of a PCIe link, and the two devices are a data sending end and a data receiving end mutually. The PCIe bus has multiple levels, in addition to the bus link, through which the sender and receiver send or receive data. All connected devices can be acquired by scanning the PCIe bus.
Optionally, the obtaining of the information of all the display cards of the Loongson computer through the PCIe bus specifically includes:
setting the current bus as bus 0, and starting to scan all access devices;
when the access equipment on the current bus is a display card, recording the bus number, the equipment number, the function number and the address space size of the display card;
and when the current bus is detected to be the last bus, calculating the number of all the display cards. Counting all the graphics cards may provide for creating data of a corresponding capacity.
Step S102, creating a priority array for all the video cards in the memory, wherein each item in the array corresponds to the priority of each video card, and one video card with the highest priority is preset in the array;
the priority number group is the number of the display cards, each item of the array corresponds to the priority of each display card, preferably, each display card is marked, and the display cards can be marked through numbers, bus numbers or equipment numbers and the like. For example, the priority of the graphics card numbered 001 is 1, and the level of the priority is represented by an integer numerical value.
The priority level may be determined specifically according to the graphics card device that needs to be used, for example, may be determined according to performance parameters of the graphics card or the size of the address space, or may be customized, and is not limited herein.
Step S103, traversing the array, acquiring the display card with the highest priority, and reading the information of the display card with the highest priority;
the information of the display card comprises a bus number, an equipment number, a function number, the size of an address space and the like, and when the display card to be used is obtained, the address space is allocated to the display card, so that the display card can be called.
Optionally, the method further includes: all but the highest priority graphics cards are disabled.
And step S104, allocating an address space for the display card with the highest priority.
Optionally, the allocating an address space to the graphics card with the highest priority specifically includes:
and calculating the base address of the display card with the highest priority according to the address space size of the display card with the highest priority and the PCIe address space size of the computer, and modifying a PCIe configuration space base address register of the display card into the base address of the display card with the highest priority.
In the embodiment of the invention, the problem of insufficient address space under the condition that a plurality of display cards are installed in the Loongson computer is solved by creating the priority array, setting the display card with the highest priority and distributing the address space for the display card, and the method does not depend on a specific BIOS or an operating system, and simultaneously adopts software to configure the priority and the address space of the display card, does not need to increase a hardware circuit, effectively reduces the equipment cost, and is simple and easy to implement.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Example two:
the foregoing mainly describes a method for configuring resource of a graphics card based on a Loongson computer, and a detailed description will be given below of a device for configuring resource of a graphics card based on a Loongson computer.
Fig. 2 is a block diagram illustrating an embodiment of a display card resource configuration apparatus based on a Loongson computer in the embodiment of the present invention, where the apparatus includes:
the acquisition module 21: the system comprises a PCIe bus, a main control board and a USB interface, wherein the PCIe bus is used for acquiring information of all display cards of the Loongson computer through the PCIe bus after the Loongson computer is started;
optionally, the obtaining module includes:
an initialization unit: the device is used for initializing the Loongson processor, the memory, the north bridge chip, the PCIe controller and the south bridge chip after the Loongson computer is electrified.
Optionally, the obtaining module further includes:
a scanning unit: the system is used for setting the current bus as a bus 0 and starting to scan all access devices;
a recording unit: the method comprises the steps that when the access equipment on the current bus is a display card, the bus number, the equipment number, the function number and the address space size of the display card are recorded;
a calculation unit: and the display card counting module is used for counting the number of all the display cards when the current bus is detected to be the last bus.
The creation module 22: the display card priority setting method comprises the steps that a priority array is established for all display cards in a memory, wherein each item in the array corresponds to the priority of each display card, and one display card with the highest priority is preset in the array;
the traversing module 23: the display card module is used for traversing the array, acquiring the display card with the highest priority and reading the information of the display card with the highest priority;
optionally, the traversing module further includes:
a disabling unit: for disabling all but the highest priority graphics card.
The distribution module 24: and the address space is distributed to the display card with the highest priority.
Optionally, the allocating module includes:
a calculation unit: according to the address space size of the display card with the highest priority and the PCIe address space size of the computer, calculating the base address of the display card with the highest priority, and modifying a PCIe configuration space base address register of the display card into the base address of the display card with the highest priority
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art would appreciate that the modules, elements, and/or method steps of the various embodiments described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A display card resource allocation method based on a Loongson computer is characterized by comprising the following steps:
after the Loongson computer is started, acquiring information of all display cards of the Loongson computer through a PCIe bus;
creating a priority array for all the display cards in a memory, wherein each item in the array corresponds to the priority of each display card, and one display card with the highest priority is preset in the array;
traversing the array, acquiring the display card with the highest priority, and reading the information of the display card with the highest priority;
allocating an address space for the display card with the highest priority;
wherein, the starting dragon core computer is specifically as follows: after the Loongson computer is powered on, initializing a Loongson processor, a memory, a north bridge chip, a PCIe controller and a south bridge chip;
the obtaining of the information of all the display cards of the Loongson computer through the PCIe bus specifically comprises the following steps:
setting the current bus as bus 0, and starting to scan all access devices;
when the access equipment on the current bus is a display card, recording the bus number, the equipment number, the function number and the address space size of the display card;
and when the current bus is detected to be the last bus, calculating the number of all the display cards.
2. The method of claim 1, wherein traversing the array, obtaining the graphics card with the highest priority, and reading information of the graphics card with the highest priority further comprises:
all but the highest priority graphics cards are disabled.
3. The method according to claim 1, wherein the allocating an address space to the graphics card with the highest priority is specifically:
and calculating the base address of the display card with the highest priority according to the address space size of the display card with the highest priority and the PCIe address space size of the computer, and modifying a PCIe configuration space base address register of the display card into the base address of the display card with the highest priority.
4. A display card resource configuration device based on a Loongson computer is characterized by comprising:
an acquisition module: the system comprises a PCIe bus, a main control board and a USB interface, wherein the PCIe bus is used for acquiring information of all display cards of the Loongson computer through the PCIe bus after the Loongson computer is started;
a creation module: the display card priority setting method comprises the steps that a priority array is established for all display cards in a memory, wherein each item in the array corresponds to the priority of each display card, and one display card with the highest priority is preset in the array;
a traversing module: the display card module is used for traversing the array, acquiring the display card with the highest priority and reading the information of the display card with the highest priority;
a distribution module: the address space is distributed for the display card with the highest priority;
wherein the acquisition module comprises: an initialization unit: the device comprises a Loongson computer, a memory, a north bridge chip, a PCIe controller and a south bridge chip, wherein the Loongson computer is used for initializing the Loongson processor, the memory, the north bridge chip, the PCIe controller and the south bridge chip after being electrified;
the acquisition module includes: a scanning unit: the system is used for setting the current bus as a bus 0 and starting to scan all access devices;
a recording unit: the method comprises the steps that when the access equipment on the current bus is a display card, the bus number, the equipment number, the function number and the address space size of the display card are recorded;
a calculation unit: and the display card counting module is used for counting the number of all the display cards when the current bus is detected to be the last bus.
5. The apparatus of claim 4, wherein the traversal module further comprises: a disabling unit: for disabling all but the highest priority graphics card.
6. The apparatus of claim 4, wherein the assignment module comprises:
a calculation unit: and calculating the base address of the display card with the highest priority according to the address space size of the display card with the highest priority and the PCIe address space size of the computer, and modifying a PCIe configuration space base address register of the display card into the base address of the display card with the highest priority.
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